/*
 * Copyright 2015 MongoDB, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.github.dunwu.spring.data.db.mongo;

import com.mongodb.Block;
import com.mongodb.client.FindIterable;
import org.bson.Document;
import org.junit.Test;

import static com.mongodb.client.model.Filters.*;
import static com.mongodb.client.model.Sorts.ascending;
import static java.util.Arrays.asList;

// @imports: start
// @imports: end

public class QueryPrimer extends PrimerTestCase {

	@Test
	public void queryAll() {
		// @begin: query-all
		// @code: start
		FindIterable<Document> iterable = db.getCollection("restaurants").find();
		// @code: end

		// @pre: Iterate the results and apply a block to each resulting document.
		// @code: start
		iterable.forEach(new Block<Document>() {
			@Override
			public void apply(final Document document) {
				System.out.println(document.toJson());
			}
		});
		// @code: end
		// @end: query-all
	}

	@Test
	public void logicalAnd() {

		// @begin: logical-and
		// @code: start
		FindIterable<Document> iterable = db.getCollection("restaurants")
			.find(new Document("cuisine", "Italian").append("address.zipcode", "10075"));
		// @code: end

		// @pre: Iterate the results and apply a block to each resulting document.
		// @code: start
		iterable.forEach(new Block<Document>() {
			@Override
			public void apply(final Document document) {
				System.out.println(document);
			}
		});
		// @code: end

		// @pre: To simplify building queries the Java driver provides static helpers
		// @code: start
		db.getCollection("restaurants").find(and(eq("cuisine", "Italian"), eq("address.zipcode", "10075")));
		// @code: end

		// @end: logical-and
	}

	@Test
	public void logicalOr() {

		// @begin: logical-or
		// @code: start
		FindIterable<Document> iterable = db.getCollection("restaurants").find(new Document("$or",
			asList(new Document("cuisine", "Italian"), new Document("address.zipcode", "10075"))));
		// @code: end

		// @pre: Iterate the results and apply a block to each resulting document.
		// @code: start
		iterable.forEach(new Block<Document>() {
			@Override
			public void apply(final Document document) {
				System.out.println(document);
			}
		});
		// @code: end

		// @pre: To simplify building queries the Java driver provides static helpers
		// @code: start
		db.getCollection("restaurants").find(or(eq("cuisine", "Italian"), eq("address.zipcode", "10075")));
		// @code: end

		// @end: logical-or
	}

	@Test
	public void queryTopLevelField() {
		// @begin: query-top-level-field
		// @code: start
		FindIterable<Document> iterable = db.getCollection("restaurants").find(new Document("borough", "Manhattan"));
		// @code: end

		// @pre: Iterate the results and apply a block to each resulting document.
		// @code: start
		iterable.forEach(new Block<Document>() {
			@Override
			public void apply(final Document document) {
				System.out.println(document);
			}
		});
		// @code: end

		// @pre: To simplify building queries the Java driver provides static helpers
		// @code: start
		db.getCollection("restaurants").find(eq("borough", "Manhattan"));
		// @code: end
		// @end: query-top-level-field
	}

	@Test
	public void queryEmbeddedDocument() {
		// @begin: query-embedded-document
		// @code: start
		FindIterable<Document> iterable = db.getCollection("restaurants")
			.find(new Document("address.zipcode", "10075"));
		// @code: end

		// @pre: Iterate the results and apply a block to each resulting document.
		// @code: start
		iterable.forEach(new Block<Document>() {
			@Override
			public void apply(final Document document) {
				System.out.println(document);
			}
		});
		// @code: end

		// @pre: To simplify building queries the Java driver provides static helpers
		// @code: start
		db.getCollection("restaurants").find(eq("address.zipcode", "10075"));
		// @code: end
		// @end: query-embedded-document
	}

	@Test
	public void queryFieldInArray() {
		// @begin: query-field-in-array
		// @code: start
		FindIterable<Document> iterable = db.getCollection("restaurants").find(new Document("grades.grade", "B"));
		// @code: end

		// @pre: Iterate the results and apply a block to each resulting document.
		// @code: start
		iterable.forEach(new Block<Document>() {
			@Override
			public void apply(final Document document) {
				System.out.println(document);
			}
		});
		// @code: end

		// @pre: To simplify building queries the Java driver provides static helpers
		// @code: start
		db.getCollection("restaurants").find(eq("grades.grade", "B"));
		// @code: end
		// @end: query-field-in-array
	}

	@Test
	public void greaterThan() {
		// @begin: greater-than
		// @code: start
		FindIterable<Document> iterable = db.getCollection("restaurants")
			.find(new Document("grades.score", new Document("$gt", 30)));
		// @code: end

		// @pre: Iterate the results and apply a block to each resulting document.
		// @code: start
		iterable.forEach(new Block<Document>() {
			@Override
			public void apply(final Document document) {
				System.out.println(document);
			}
		});
		// @code: end

		// @pre: To simplify building queries the Java driver provides static helpers
		// @code: start
		db.getCollection("restaurants").find(gt("grades.score", 30));
		// @code: end
		// @end: greater-than
	}

	@Test
	public void lessThan() {
		// @begin: less-than
		// @code: start
		FindIterable<Document> iterable = db.getCollection("restaurants")
			.find(new Document("grades.score", new Document("$lt", 10)));
		// @code: end

		// @pre: Iterate the results and apply a block to each resulting document.
		// @code: start
		iterable.forEach(new Block<Document>() {
			@Override
			public void apply(final Document document) {
				System.out.println(document);
			}
		});
		// @code: end

		// @pre: To simplify building queries the Java driver provides static helpers
		// @code: start
		db.getCollection("restaurants").find(lt("grades.score", 10));
		// @code: end
		// @end: less-than
	}

	@Test
	public void sort() {
		// @begin: sort
		// @code: start
		FindIterable<Document> iterable = db.getCollection("restaurants").find()
			.sort(new Document("borough", 1).append("address.zipcode", 1));
		// @code: end

		// @pre: Iterate the results and apply a block to each resulting document
		// @code: start
		iterable.forEach(new Block<Document>() {
			@Override
			public void apply(final Document document) {
				System.out.println(document);
			}
		});
		// @code: end

		// @pre: To simplify sorting fields the Java driver provides static helpers
		// @code: start
		db.getCollection("restaurants").find().sort(ascending("borough", "address.zipcode"));
		// @code: end
		// @end: sort
	}

}
